A proton enters a magnetic field of flux density 5 T with a velocity o – McqOptions

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1.	A proton enters a magnetic field of flux density 5 T with a velocity of 5 10⁷ ms^-1 at an angle of 30^o with the field. Find the force on the proton.
A.	0.2 10<sup>-11</sup> N
B.	2 10<sup>-11</sup> N
C.	20 10<sup>-11</sup> N
D.	200 10<sup>-11</sup> N
Answer» C. 20 10<sup>-11</sup> N

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